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Finding the Fourth Proportional to 438,944.50, 605,792.59 and 247,970.19

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Solution

The fourth proportional to 438,944.50, 605,792.59 and 247,970.19 is: 342,226.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,944.50 : 605,792.59 = 247,970.19 : x
  2. Step 2: Convert to fraction form
    438,944.50/605,792.59 = 247,970.19/x
  3. Step 3: Cross multiply
    438,944.50x = 605,792.59 × 247,970.19
  4. Step 4: Simplify right side
    438,944.50x = 150,218,505,294.69
  5. Step 5: Solve for x
    x = 150,218,505,294.69/438,944.50
  6. Step 6: Final answer
    x = 342,226.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.